SQL SELECT COUNT: A Comprehensive Guide

SQL SELECT COUNT

The SQL COUNT() function retrieves the number of records in a table. It simplifies tasks where manual counting would be tedious ÔÇö counting customers, products, employees, and more.

Complete Python Course with Advance topics:-
SQL Tutorial:-

Syntax

SELECT COUNT(column_name) FROM table_name;

COUNT(column) vs COUNT(*)

-- Counts only non-NULL Price values
SELECT COUNT(Price) AS TotalPrices FROM Vehicles;   -- e.g. 4

-- Counts ALL rows including NULLs
SELECT COUNT(*) AS TotalVehicles FROM Vehicles;     -- e.g. 6

Key difference: COUNT(column) ignores NULLs, while COUNT(*) counts every row.

COUNT with WHERE

SELECT COUNT(Vehicle_Name) AS ElectricVehicles
FROM Vehicles
WHERE Vehicle_Type = 'Electric';   -- e.g. 2

COUNT with DISTINCT

SELECT COUNT(DISTINCT City) AS UniqueCities
FROM EmployeeRecords;   -- counts unique cities only

COUNT with GROUP BY

SELECT City, COUNT(*) AS Employees
FROM EmployeeRecords
GROUP BY City;

Download New Real Time Projects:- Click here
Complete Advance AI topics:-

Conclusion

The COUNT() function efficiently counts specific or all entries. Combined with WHERE, DISTINCT, and GROUP BY, it becomes a powerful analysis tool. For more database tips, stay connected with .

sql select count group by
sql select count(distinct)
count number of rows in sql
sql count with condition
count(1) in sql
sql count if
sql select count example
sql select count w3schools